Hydrogenating process and magnetocaloric effect in La0.7Pr0.3Fe11.5Si1.5C0.2Hx hydrides
文献类型:期刊论文
作者 | Zhao, JL ; Shen, J ; Zhang, H ; Xu, ZY ; Wu, JF ; Hu, FX ; Sun, JR ; Shen, BG |
刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
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出版日期 | 2012 |
卷号 | 520页码:277 |
关键词 | MAGNETIC ENTROPY CHANGE INTERSTITIAL COMPOUNDS ROOM-TEMPERATURE TRANSITION |
ISSN号 | 0925-8388 |
通讯作者 | Shen, BG: Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100190, Peoples R China. |
中文摘要 | Interstitial La0.7Pr0.3Fe11.5Si1.5C0.2Hx hydrides with large magnetocaloric effect are prepared. It is found that the addition of carbon atoms can lower the rate of hydrogen absorption/release, which is beneficial to an accurate control of hydrogen content. The Curie temperature T-C can be adjusted to the room temperature by changing the carbon/hydrogen content. The introduction of carbon atoms leads to a remarkable reduction of thermal/magnetic hysteresis because the first-order magnetic transition is weakened. The maximal magnetic entropy change of La0.7Pr0.3Fe11.5Si1.5C0.2H1.2 is found to be 22.1 J/kg K at T-C = 321 K without hysteresis loss for a field change of 0-5 T. (C) 2012 Elsevier B.V. All rights reserved. |
收录类别 | SCI |
资助信息 | National Natural Science Foundation of China [50731007, 11004204, 51021061]; Chinese Academy of Sciences; Hi-Tech Research and Development program of China |
语种 | 英语 |
公开日期 | 2013-09-17 |
源URL | [http://ir.iphy.ac.cn/handle/311004/39540] ![]() |
专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
推荐引用方式 GB/T 7714 | Zhao, JL,Shen, J,Zhang, H,et al. Hydrogenating process and magnetocaloric effect in La0.7Pr0.3Fe11.5Si1.5C0.2Hx hydrides[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2012,520:277. |
APA | Zhao, JL.,Shen, J.,Zhang, H.,Xu, ZY.,Wu, JF.,...&Shen, BG.(2012).Hydrogenating process and magnetocaloric effect in La0.7Pr0.3Fe11.5Si1.5C0.2Hx hydrides.JOURNAL OF ALLOYS AND COMPOUNDS,520,277. |
MLA | Zhao, JL,et al."Hydrogenating process and magnetocaloric effect in La0.7Pr0.3Fe11.5Si1.5C0.2Hx hydrides".JOURNAL OF ALLOYS AND COMPOUNDS 520(2012):277. |
入库方式: OAI收割
来源:物理研究所
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